Microservice Patterns - 用 Saga 管理交易 - 4.3 處理缺乏隔離性的問題
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 ACID 交易的隔離性確保同時執行多個交易的結果，跟以某種串行順序執行它們的結果相同 隔離性讓撰寫同時執行...
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Microservice Patterns - Managing transactions with sagas - 4.2 Coordinating sagas
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Sagas process Saga init by system command Coordina...
Microservice Patterns - 用 Saga 管理交易 - 4.2 協調 Saga
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Saga 流程 Saga 由系統命令啟動 協調邏輯選擇並告訴第一個 Saga 參與者執行本地交易 完成後，...
Microservice Patterns - 4.1 Managing transactions with sagas - Transaction management in a microservice architecture
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Challenges In a monolithic system, a createOrder oper...
Microservice Patterns - 4.1 用 Saga 管理交易 - Microservice 架構中的交易管理
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 挑戰 在單體系統中，createOrder 操作只需要依賴帶有 transactional annotation 的...
Understand java.lang.OutOfMemoryError: Direct buffer memory
Introduction One day, Cassandra stop listening for thrift client until restart it manually. After checking Cassandra log, found it encountered OutOfMemory...
理解 java.lang.OutOfMemoryError: Direct buffer memory
前言 某天，Cassandra 停止監聽 thrift client 的連線，直到手動重啟才恢復。 檢查 Cassandra log 之後，發現遇到了 OutOfMemoryError ERROR [Thrift-Selector_27] 2020-03-31 06:00:44,020 TDisrupt...
Microservice Patterns - 3.4 Interprocess communication in a microservice architecture - Using asynchronous messaging to improve availability
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 synchronous communication with other services as part ...
Microservice Patterns - 3.4 Microservice 架構中的行程間通訊 - 使用非同步 Messaging 提升可用性
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 在處理請求時與其他服務做同步通訊會降低應用程式的可用性 因此，你應該盡可能設計服務使用非同步 messaging ...
UP學：所有經理人相見恨晚的一本書 What Got You Here Won’t Get You There
Reference Notes 應該 知道該停止做甚麼 => 認清沉沒成本, 勇敢不做 調整成中立的 => 不用當混蛋, 不用太討好人. 甚麼都不做 不該 贏太多 => 太專注於贏別人 加值過度 => 聽到好的提案, 應該說謝謝以及考慮執行, 不用再加上自己的...
UP學：所有經理人相見恨晚的一本書 What Got You Here Won’t Get You There
參考資料 筆記 應該 知道該停止做甚麼 => 認清沉沒成本, 勇敢不做 調整成中立的 => 不用當混蛋, 不用太討好人. 甚麼都不做 不該 贏太多 => 太專注於贏別人 加值過度 => 聽到好的提案, 應該說謝謝以及考慮執行, 不用再加上自己的意見, 以為會讓...
Microservice Patterns - 3.3 Interprocess communication in a microservice architecture - Communicating using the Asynchronous messaging - 2
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Using a message broker broker-based architecture b...
Microservice Patterns - 3.3 Microservice 架構中的行程間通訊 - 使用非同步 Messaging 溝通 - 2
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 使用 Message Broker 基於 broker 的架構 基於 brokerless 的 messagi...
Microservice Patterns - 3.3 Interprocess communication in a microservice architecture - Communicating using the Asynchronous messaging - 1
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Pattern: Messaging A client invokes a service us...
Microservice Patterns - 3.3 Microservice 架構中的行程間通訊 - 使用非同步 Messaging 溝通 - 1
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Pattern: Messaging Client 使用非同步 messaging 來呼叫服務。參見 ht...
How to reset a counter
Purpose: Original value is origVal, we want to use increase/decrease to update to a specified number How? origValue = origValue + expectedValue diff...
如何重設計數器
目的：原始值是 origVal，我們想要透過增加/減少來更新到指定的數字 怎麼做？ origValue = origValue + expectedValue diff = expectedValue - origValue origValue = origValue + diff ...
Microservice Patterns - 3.2.4 Interprocess communication in a microservice architecture - Using Service Discovery
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 in order for one service to invoke another service usin...
Microservice Patterns - 3.2.4 Microservice 架構中的行程間通訊 - 使用 Service Discovery
參考資料 https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 為了讓一個服務能用 RPI 呼叫另一個服務，它需要知道服務實例的網路位置。=> Service Discovery...
Microservice Patterns - 3.2 Interprocess communication in a microservice architecture - Communicating using the synchronous Remote procedure invocation pattern
Reference https://www.amazon.com/Microservices-Patterns-examples-Chris-Richardson/dp/1617294543 Remote procedure invocation A client invokes a s...